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The Zhongyu Dingli 3M TPA Sedimentary Rock Aggregate Production Line is a fully integrated system engineered for large-scale crushing and sand making from sandstone and other sedimentary rock materials. The line combines high-performance Crushing Equipment, Stone Crusher, Sand Maker and multi-layer Vibrating Screen in a matched configuration optimized for the moderate hardness and layered structure of sedimentary rock. The production system simultaneously outputs five finished product specifications: 12 Stone (10-20mm), 13 Stone (20-31.5mm), 05 Stone (0-5mm), manufactured sand, stone powder and sludge, fully meeting the requirements of concrete mixing, asphalt pavement and road base construction. A Mobile Crusher unit is available as a supplementary configuration for sites with changing layouts or limited infrastructure, enabling on-site crushing at the material source and reducing transportation costs. The entire system is designed for continuous large-scale operation with centralized intelligent control, minimizing manual intervention and ensuring stable long-term performance at 3 million tons per annum output.
Large-scale aggregate demand from construction, infrastructure and mining projects has placed significant pressure on conventional production facilities to deliver consistent quality and sufficient volume from locally available raw materials. Sedimentary rock such as sandstone is abundant and cost-effective, but its layered structure and variable hardness require precisely matched crushing stages to avoid over-crushing and maintain cubical particle shape. Projects requiring five or more simultaneous product specifications also demand highly accurate screening and classification systems to prevent grade contamination and product waste. The Zhongyu Dingli 3M TPA line addresses these challenges through a staged crushing configuration with controlled reduction ratios, integrated sand making for fine aggregate production, and multi-layer vibrating screen classification that ensures each specification meets strict industry standards. The system is suitable for aggregate plants supplying concrete manufacturers, highway contractors and infrastructure developers, and can be configured with closed-loop water recycling and stone powder recovery to meet environmental compliance requirements.
Raw sandstone ore is delivered to the primary feeding hopper by heavy-duty dump trucks and fed into the first-stage Crushing Equipment for initial reduction, breaking large blocks down to intermediate size. The primary crushed material is conveyed to a secondary Stone Crusher for further size reduction with precise particle shape control, ensuring the cubical geometry required for high-grade aggregate. Material from the secondary stage passes through the multi-layer Vibrating Screen, which classifies output into the target specifications of 10-20mm, 20-31.5mm and 0-5mm. Oversized fractions are returned to the Stone Crusher for closed-loop reprocessing, maximizing raw material utilization. Fine crushed stone and crusher dust are directed to the Sand Maker, which converts them into high-quality manufactured sand with stable gradation and excellent bonding performance. Stone powder generated during the process is collected and recovered, while sludge from any wet processing stage is handled by a mud press system for dewatering and environmental discharge compliance.
Zhongyu Dingli provides full EPC turnkey project delivery for the 3M TPA Sedimentary Rock Aggregate Production Line. In the engineering design phase, the technical team analyzes the sandstone characteristics, site topography and product specification requirements to determine optimal equipment selection, crushing ratios, screen configurations and material flow layout. During manufacturing, all core equipment including Crushing Equipment, Stone Crusher, Sand Maker and Vibrating Screen is produced in-house with strict quality inspection standards and wear-resistant component specifications suited for the abrasiveness of sedimentary rock. For installation and commissioning, Zhongyu Dingli sends experienced project engineers to site to supervise civil works coordination, equipment assembly, system integration and performance testing against the 3M TPA production target. In the operations and maintenance phase, the company provides remote monitoring support, preventive maintenance scheduling, wear part supply and operator training to ensure sustained high-efficiency production and compliance with environmental standards throughout the project lifecycle.
Zhongyu Dingli has delivered multiple large-scale aggregate production lines for sedimentary rock processing across Asia, Africa and South America, with single-line annual capacities ranging from 1M TPA to over 5M TPA. In high-calcium limestone and sandstone projects, the integrated Stone Crusher and Sand Maker configuration has consistently achieved manufactured sand output ratios exceeding project targets, while maintaining finished product qualification rates above 95% across all specifications. The closed-loop screening and reprocessing design reduces raw material waste and improves overall yield, providing measurable cost savings over the project operational lifetime. The multi-spec simultaneous output capability, covering coarse aggregate, medium aggregate, fine aggregate, manufactured sand and stone powder in a single line, has proven particularly effective for projects supplying multiple downstream customers with different specification requirements, improving plant utilization and revenue per ton of raw material processed.
Q1: What makes sedimentary rock such as sandstone suitable for large-scale aggregate production?
Sedimentary rock is abundant, widely distributed and generally cost-effective as a raw material for aggregate production. Its moderate hardness and relatively uniform composition make it well-suited for multi-stage crushing without excessive wear on equipment. With the right Crushing Equipment configuration and matched Stone Crusher and Sand Maker, sandstone can be efficiently processed into high-quality aggregates meeting the standards for concrete, asphalt and road base applications, while also generating usable manufactured sand and stone powder as co-products.
Q2: How does the 3M TPA line manage simultaneous output of multiple product specifications?
The production line uses a multi-layer Vibrating Screen system to classify crushed material into five product specifications simultaneously: 10-20mm, 20-31.5mm, 0-5mm, manufactured sand, stone powder and sludge. The screen configuration is engineered to match the crushing stages and Sand Maker output, ensuring that each fraction is accurately separated without grade contamination. Oversized material is returned to the Stone Crusher through a closed-loop circuit, maximizing material utilization and maintaining consistent product quality across all specifications throughout continuous large-scale operation.
Q3: Can the production line be adapted for sites with environmental restrictions on dust and water discharge?
Yes. The Zhongyu Dingli 3M TPA line can be configured with dust suppression systems, enclosed conveying modules and a closed-loop water recycling system for wet processing stages. Stone powder generated during dry crushing is collected through centralized dust collection equipment and can be recovered as a saleable co-product. Sludge from wet stages is processed by a mud press system to meet environmental discharge standards. The overall system design complies with international environmental regulations and can be customized to meet the specific requirements of local environmental authorities in different countries.
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Main Product:
Mobile Crusher,
Sand Making Equipment,
Screening Equipment,
Feeding Equipment,
Mining Conveyor ,
Crushing Equipment
